The 2.5K and 5K is out and back once, 10K out and back twice, and if you registered for the 15K on the third race, out and back three times. Do all 3 events and watch your time and fitness improve.
There will be a very informal “coat check” available on a green tarp. You will place your keys, coat, etc. (probably not your wallet) in a white plastic bag and write your name on it with a black Sharpie and leave it on the tarp in a communal area.
There is plenty of free parking in lower and upper lots and on the streets nearby.
No dogs allowed on the course due to USA Track and Field Insurance (does not/will not cover accidents due to animal misbehavior).